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What is Arrhenius equation ?

The temperature dependence of rate of a chemical reaction can be accurately explained by Arrhenius equation. It was first proposed by Dutch chemist   J.H. Vant’s Hoff but Swedish chemist Arrhenius provides its physical justification and interpretation.
Where  
 K= Rate constant
 A= Arrhenius constant or frequency factor or pre exponential factor
 R= Universal gas constant =25/3 joule per mole per second
Ea= Activation Energy
 T= temperature
-Ea/RT= Boltzmann factor or fraction of molecule having equal or greater than Activation energy or fraction of molecule that have kinetic energy greater than activation energy.

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